Table 1.
Baseline characteristics of patient groups with and without echocardiography
| Baseline Characteristic | Echocardiogram Groups* |
|
|---|---|---|
| Not Done (n = 305) | Done (n = 264) | |
| Randomized to warfarin | 49% | 53% |
| Male gender | 62% | 61% |
| White race | 64% | 51% |
| Age (yrs) | 63.7 (11.2) | 63.4 (11.7) |
| Systolic BP (mmHg) | 139.7 (16.8) | 140.0 (17.4) |
| Diastolic BP (mmHg) | 76.9 (11.0) | 76.8 (9.5) |
| BMI | 28.4 (4.9) | 29.0 (5.5) |
| On antithrombotic agent at QE | 59% | 45% |
| Drinks Alcohol | 42% | 38% |
| Sedentary | 25% | 27% |
| Ever Smoked | 66% | 63% |
| Hx of Ischemic Stroke | 26% | 23% |
| Hx of TIA | 29% | 20% |
| Hx of Hypertension | 85% | 84% |
| Hx of Diabetes | 40% | 36% |
| Hx of Lipid Disorder | 72% | 69% |
| Hx of Coronary Artery Disease | 30% | 24% |
| Qualifying Event (% Stroke) | 54% | 69% |
| Stenotic Artery | ||
| Internal Carotid | 22% | 21% |
| Middle Cerebral | 27% | 39% |
| Vertebral | 19% | 20% |
| Basilar | 25% | 15% |
| Multiple Arteries | 7% | 5% |
| Percent Stenosis (%) | 63.9 (15.4) | 63.2 (17.1) |
| Severe (≥70%) Stenosis | 36% | 38% |
| Time from QE to Randomization (days) | 23 (8,54) | 13 (6,44) |
*
The echocardiogram group indicates whether or not an echocardiogram was done at baseline. The numbers in the table are either mean (standard deviation) or the percent of each echocardiogram group having the characteristic indicated; however, for time from qualifying event to randomization the medians (interquartile ranges) are given.
Abbreviations: Hx=history, QE=qualifying event